One of our dogs was spayed a few months ago. They did the procedure in the morning, called us at noon to let us know everything was fine, and we picked her up around 4PM. She was a bit groggy (be sure to take the crate to bring her home in the car as they are very unsteady for a while) and the vet said to give her only small amounts of water for the rest of the day, no food as she would probably vomit anyway (anesthesia side effect). She didn't lick so we didn't have to do the cone thing. We kept her in the crate for the rest of that day/evening except to potty. She slept the whole time anyway.
The next day we were told to give her 3 smaller meals instead of her regular 2 meals. Everything went fine and we kept her in the crate for the next 2-3 days so that she would stay quiet and not be romping with the other dogs, or them bothering her. You need to look at the incision at least 2 times every day and watch for redness, swelling, oozing, or hot to the touch.
After the third day we let her out of the crate more, just being cautious about rough housing with the other dogs. Usually the edges of the incision have mended together by this time so it's just a matter of final healing and not ripping it open. We had winter weather at the time so we didn't take her for any walks, just out in the yard for potty time.
Really by a week after the whole thing she was completely herself again. The first few days she slept a lot, then she just wasn't very tolerant of the other dogs for a few more days. Hormones I guess! So then it was just one more week of checking the incision and preventing jumping around before they removed the stitches.